The 28-nation bloc approved the pact, the most sweeping effort to combat global pollution, at a session in Strasbourg, France. The vote indicates the threshold for ratification -- approval by at least 55 parties accounting for 55 percent of global emissions -- was reached. The EU, which seeks to be regarded as a leader in the fight against climate change, came under pressure to endorse the plan, codified in 2015, after the United States, China and India did so.